Answers
Answer:
a concave lens is exactly the opppostie with outer surfaces curving inward, so it makes parallel light rays curve outward or diverge. That's why concave lenses are sometimes called diverging lenses. ... The distance from the center of the lens to the focal point is, again, the focal length of the lens.
Step-by-step explanation:
Related Questions
What inequality represents the solution to
1.5x + 4.5 < 2.75x – 5.5?
Answers
Answer:
Step-by-step explanation:
1.5x + 4.5 < 2.75x – 5.5
10 < 1.25x
8 < x
A sport store pays its wholesaler $40 for a baseball bat, and then sells it to a customer for $76. What is the markup rate?
Answers
Answer:
Markup 90%
Step-by-step explanation:
If $40 is 100% of the price
then
$76 is ..........x
Cross multiplication
40(x) = 76(100)
40x = 7600
Divide by 100
x = 190
190% = 100% + 90%
That means that the price is the whole price(100%) plus 90%
so the markup is 90%
ANOTHER WAY:
The difference in prices is $76-$40=$36. So, we need to find what percentage of 40 is 36.
We do this by dividing: 36/40=0.9, which is 90%. So, the markup is 90%.
Admission to the fair is $15 each ride cost $3 micah spent a total of $36 he spent all of his money on rides and admission
Answers
Answer:
7
Step-by-step explanation:
Admission cost = $15
Cost per ride = $3
Total amount spent = $36
We can obtain the number of rides thus :
Let number of rides = x
Admission cost + (cost per ride * number of rides) = total amount spent
15 + 3x = 36
3x = 36 - 15
3x = 21
x = 21 / 3
x = 7
Number of rides = 7
PLEASE HELPPP
Which is a set of collinear points?
Two lines intersect at point H. One line goes through points L and J. The other line goes through points G, I, and K.
A. G, H, I
B. L, H, I
C. G, H, J
D. G, I, J
Answers
Answer:
A g, h, i
Step-by-step explanation
A set of collinear points all lie on the same line
Answer:
sf
Step-by-step explanation:
sf
Kayl wants to find the radio wave length of his favorite radio station. The formula to use is A=c/f.
A=wave length
C=speed of light
F=frequency
If c=3×10^8m/sec (the speed of light) and f=1.007×10^8 Hz (his radio station is 100.7 KISS), what is the wave length of his radio station?
A=2.979m
B=2.993m
C=2.979 × 10^8m
D=2.993 × 10^8m
Answers
Answer:
C
Step-by-step explanation:
2.979×10^8m
done enjoy
The ratio of the measures of 3 angles in a triangle is 8:10:12. Find the
measure of the angles.
Answers
Answer:
A teacher made a copy of a map. To make the map easier to see, the teacher enlarged the area of the map by 38%. Let d represent the area of the original map. The expression d + 0.38d is one way to represent the area of the new map. Write two expressions that represent the area of the new map.
Step-by-step explanation:
how do we add fractions
Answers
Answer:
you have to find a common denominator and then add.
Step-by-step explanation:
for example 2/4 + 4/12
you find the common denominator in this case it would be i will use 4 so 2/4 would stay the same and 4/12 would change to 1/3
*make sure to do the same thing to the numerator to so if you are dividing your denominator by 2 also do the numerator
now you have to add
2/4 + 4/12 = 6/12 (the denominator stays the same)
6/12 can be simplified (if you are asked to simplify) so it is 1/6
Please help im desperate. :)
Answers
Answer:
D) (3,32)
Step-by-step explanation:
Just graph
Hope this helped! Have a nice day! Plz mark as brainliest!!! :D
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Simplify using the distributive property:
6(y-8) =
Oy - 48
O by - 48
O by - 8
6y + 48
Answers
need help!! don't know what I'm doing
Answers
2x10000 - 343
20000 - 343
=19657
plss helppp againnnn brainliesttt
Answers
helpppp please will give brainliest!!
Answers
All I can say is that the slope is 1/5
Answer:
Same thing as my last answer, but with a different graph.
Step-by-step explanation:
You know a point. X = 10 and y=40
by this definition you can without the hassle, know to divide both values by 10 to get the lowest numbers possible. y= 4x
using that, data of the slope, try and answer the question (follow my guides from last time ;) )
Hope This Helps :)
The graphs of f(x) and g(x) are shown below.
For what interval is the value of (f - g)(x) negative?
O (-*infinity sign*,-1)
O (-*infinity sign*, 2)
O (0, 3)
O (2, *infinity sign*)
Answers
Answer:
The second one
Step-by-step explanation:
What is the place value of the 1 in 352.01?
Answers
Answer:
hundredths
Step-by-step explanation:
the 0 is tenths and the 1 is hundredths
What is the name of the persons(nobles) who help the taino chief
pls help me I will give brainliest
Answers
Answer:
Hey mate.....
Step-by-step explanation:
This is ur answer....
Cacique comes from the Taíno word kassiquan, meaning "to keep house". In 1555 the word entered the English language as "prince". In Taíno culture, the cacique rank was hereditary and sometimes established through democratic means.
hope it helps you,
Mark me as the brainliest....
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Andy wants to rent a limo to go to prom, but wants to split the cost with some friends. The limo costs $400 to rent
Answers
Answer:
its would prob be 100 / 4
Step-by-step explanation:
write a function in terms of t that represents the situation. A stock valued at $100 decreases in value by 9.5 % each year.
y =
Answers
Exponential decay function describes the process of reducing an amount by constant percentage rate over a period of time.. Thus the function in terms of t that represents the given situation is,
[tex]y=100(-8.5)^t[/tex]Given information-
The value of the stock is $100.
The value of stock decreases by 9.5% each year.
Exponential decay function-Exponential decay function describes the process of reducing an amount by constant percentage rate over a period of time.
The initial value of the stock was $100 and the decay rate is 9.5 percent per year.
The exponential decay function can be given as,
[tex]y=a(1-r)^t[/tex]
Here [tex]a[/tex] is the initial value, r is the decay rate and t is the number of time interval.
Put the values,
[tex]y=100(1-9.5)^t[/tex]
[tex]y=100(-8.5)^t[/tex]
Thus the function in terms of t that represents the given situation is,
[tex]y=100(-8.5)^t[/tex]
Learn more about the exponential decay function here;
https://brainly.com/question/4119784
WILL GIVE BRAINLIEST
All of the following are possible ways to write the expression "n - 3" as a phrase EXCEPT:
1. n minus 3
2. n subtracted from 3
3. 3 fewer than n
4. n decreased by 3
Answers
Explanation: that suggests that n is being taken from 3 when 3 is being taken from n
Answer:
#2 is the answer
Step-by-step explanation:
it is basically saying 3-n but its n-3 so its #2
5
An atom silicon is approximately 0.00000000067 Imeters wide. How do you express that number in scientific notation?
A 6.7 x 1010
meters
B 67 x 10-10
meters
© 6.7 x 10-10 meters
11
D 6.7 x 10
meters
Answers
2 of 7 A shop has a sale of 5% off all items in stock. If the original price of a dress is £80 what would be its sale price?
Answers
Answer:
the sale price is £76
Step-by-step explanation:
The computation of the sale price is shown below:
= Original price - original price × off percentage
= £80 - £80 × 5%
= £80 - £4
= £76
Hence, the sale price is £76
Find the value of x.
Answers
Answer:
50
Step-by-step explanation:
The upper left hand arc is also 130
The lower right hand arc is also x
A circle all the way around from some starting point is 360 degrees.
x + x + 130 + 130 = 360 Equation. Combine like terms.
2x + 260 = 360 Subtract 260 from both sides
2x = 360 - 260
2x = 100 Divide by 2
x = 100/2
x = 50
A) 5t - 6= 3 - 41
Me ajuda!!!! Por favor
Answers
Answer:
t= -32/5
Step-by-step explanation:
1. Simplify 3-41= -38 5t-6 = -38
2. Add 6 to both sides 5t= -38+6
3. Simplify -38+6=-32 5t= -32
4. Divide both sides by 5 and it should give you t = − 32/5
If you want to check your answer 1. 5t-6 = 3-41 let t = -32/5 5× -32/5 -6 = 3-41
2. Cancel 5 -32 -6 = 3-41
3. Simplify -32-6= -38 -38= 3-41
4. Simplify 3-41= -38
-38=-38 and that how you check your answer to see it was right.
A data set has these values: 7,9,9, 11, 11, 11, 11, 13, 13, 15. A histogram of
the distribution is shown.
4
Which statement does not describe the data set?
3
Frequency
2
A. It has a range of 16.
B. It has a median of 11.
0
6 8 10 12 14 16
c. It has a mode of 11.
O
D. It is symmetric.
Answers
Answer:
Step-by-step explanation:
c
Answer: It has a range of 16
Step-by-step explanation:
I just took it
need help on this question
Answers
Answer:
2⁴/4² = 1
2 × 3¹ = 6
(4-2)² = 4
Answer:
1. Correct
2. Correct again
3. 4
Step-by-step explanation:
The first one is correct If you need an explanation let me know.
Second one is the same
For the third one since 4-2 is in () you would have to do it first
4-2= 2
Then you will have to do it to the 2nd power which would mean...
2 x 2= 4
So 4 would be your answer.
Hope this helps :)
Solve for x in the diagram below.
Help asap pls!!
Answers
Answer:
x=50
Step-by-step explanation:
50+2x=150
2x=100
x=50
Give brillanst please!!!!
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
Answers
Answer:
i'd say D
Step-by-step explanation:
when i solve the first equation I get 2
when I solve the second equation I get 6
so 6-2=4
9(5x + 1) ÷ 3y From the expression above, provide an example of each of the following: sum, term, product, factor, quotient, and coefficient. If any are not present, write "not present." (6 points)
Answers
The parts of the expression, 9(5x + 1) ÷ 3y, are:
Sum: 5x + 1Term: 3yProduct: 9(5x + 1)Factor: 9Quotient: 9(5x + 1) ÷ 3yCoefficient: 3There are several parts that make up an expression.
All or some of these parts must be present in an expression.
In an expression,
Sum is represented with the addition (+) signProducts are represented by brackets or the multiplication (*) signQuotients are represented by the division signCoefficients are written before the variablesFactors are written before the bracketsUsing the above definition, we have the following representations
Sum: 5x + 1Term: 3yProduct: 9(5x + 1)Factor: 9Quotient: 9(5x + 1) ÷ 3yCoefficient: 3Read more about expressions at:
https://brainly.com/question/8878417
Benny bought 4 new baseball trading cards to add to his collection. The next day his dog ate half of his collection. There are now only 24 cards left.
How many cards did Benny start with?
Answers
Answer:
44
Step-by-step explanation:
24x2
48-4= 44
Please Help !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answers
Answer:
26:26
Step-by-step explanation:
I hope I've helped :)
Jeremy is digging a hole. The bottom of the hole is – 2.8 ft from the top of the
hole. Sanjay is on a deck that is 12.3 ft above top of the hole. How many feet apart
are Sanjay and the bottom of the hole? Record your answer on the grid. Then fill in
the bubbles.
Answers
Not sure
Good luck!!!!!!!!!!